15,199 research outputs found
Transport poverty meets the digital divide : accessibility and connectivity in rural communities
Peer reviewedPublisher PD
A Cloud Platform-as-a-Service for Multimedia Conferencing Service Provisioning
Multimedia conferencing is the real-time exchange of multimedia content
between multiple parties. It is the basis of a wide range of applications
(e.g., multimedia multiplayer game). Cloud-based provisioning of the
conferencing services on which these applications rely will bring benefits,
such as easy service provisioning and elastic scalability. However, it remains
a big challenge. This paper proposes a PaaS for conferencing service
provisioning. The proposed PaaS is based on a business model from the state of
the art. It relies on conferencing IaaSs that, instead of VMs, offer
conferencing substrates (e.g., dial-in signaling, video mixer and audio mixer).
The PaaS enables composition of new conferences from substrates on the fly.
This has been prototyped in this paper and, in order to evaluate it, a
conferencing IaaS is also implemented. Performance measurements are also made.Comment: 6 pages, 6 figures, IEEE ISCC 201
The AMSC network control system
The American Mobile Satellite Corporation (AMSC) is going to construct, launch, and operate a satellite system in order to provide mobile satellite services to the United States. AMSC is going to build, own, and operate a Network Control System (NCS) for managing the communications usage of the satellites, and to control circuit switched access between mobile earth terminals and feeder-link earth stations. An overview of the major NCS functional and performance requirements, the control system physical architecture, and the logical architecture is provided
UNDERSTANDING THE DETERMINANTS OF ICTS DIFFUSSION IN ECOWAS
The Information and Communication technology(ICT) environment in the economic community of west african states(ECOWAS) has changed sufficiently to warrant re-conceptualization of the earlier initiatives. Notably, many new technologies have emerged, especially in the area of wireless communications. Thus, ECOWAS ability to participate in and enhance its international competitiveness in the new global economy and hence make progress in poverty reduction depends in large part on its ability to use and adapt new information and technological innovations. This project therefore, sets out to enhance understanding and knowledge of the innovative effects of ICT poverty reduction and human development; and to improve ECOWAS capacities to formulate and implement national ICT policies that promote equitable access to ICT and information for socio-economic development.Technological progress, growth, productivity, diffusion, ICTS, AFRICAN ECONOMIES, DYNAMIC PANEL DATA
- …